When you go to clean up all those test directories, use the following
command. BUT BE VERY VERY CAREFUL:

[bash]$ rm -Rf picture/test_directory

You could lose more than you bargin for, test_directory
should be what you entered for $DIRPATH in the scripts above. (It
never hurts for first time user to slip over somewhere else and create a
directory tree, copy file to it, and test this command line before using it on
something irreplacable.) Again read the manual.